The invention relates to a guide device and guide method used for minimally-invasive deep brain
surgery, and belongs to the technical field of minimally-invasive brain
surgery equipment. The problem that existing devices are liable to cause damage to
brain tissue of patients is solved. The guide device comprises a
mask guide board, a guide support, a guide needle and a retraction
catheter, whereinthe
mask guide board can be fixedly attached to
skin of the head of a patient, the guide support is installed on the
mask guide board, and the mask guide board and the guide support are detachably and fixedly connected; the guide needle can enter the brain in a guide direction of the guide support; and the retraction
catheter can reach a preset position in the brain along the guide needle. According to the guide device and guide method used for the minimally-invasive deep brain
surgery, shaking of the retraction
catheter in a process of entering the brain is prevented so that not only can thedegree of damage to the
brain tissue in an
insertion process of the retraction catheter be reduced, but also the accuracy of an
insertion position of the retraction catheter in the brain can be further improved. Meanwhile, by means of conical design of the front end of a core of the retraction catheter, damage to the
brain tissue in the entering process of the retraction catheter is further reduced, and the position is more accurate.